What is Promptfoo?
Promptfoo is an innovative open-source tool designed to empower developers in the rigorous testing, evaluation, and security assessment of AI prompts. By facilitating structured, automated workflows across multiple language models, Promptfoo addresses a critical need for robust AI development and deployment practices. The company's focus on providing a comprehensive suite of tools for prompt engineering positions it as a key player in the rapidly evolving artificial intelligence landscape.
How much funding has Promptfoo raised?
Promptfoo has raised a total of $40.9M across 3 funding rounds:
Angel/Seed
$5M
Private Equity
$17.5M
Series A
$18.4M
Angel/Seed (2024): $5M with participation from Andreessen Horowitz
Private Equity (2025): $17.5M, investors not publicly disclosed
Series A (2025): $18.4M supported by Andreessen Horowitz and Insight Partners
Key Investors in Promptfoo
Andreessen Horowitz
Founded in 2009, Andreessen Horowitz is a private American venture capital firm that invests in both early-stage start-ups and established growth companies. The company is headquartered in Menlo Park, California.
Insight Partners
Insight Partners is a global venture capital and private equity firm that invests in high-growth software and technology companies. It provides capital and hands-on operational support to help businesses scale from early stage to IPO, focusing on enterprise software, SaaS, and internet platforms.
What's next for Promptfoo?
With the recent influx of major strategic investment and significant overall capital, Promptfoo is poised for accelerated expansion. The company is likely to focus on enhancing its platform's capabilities, expanding its open-source community engagement, and potentially exploring new market segments for AI prompt management and security. This enterprise-level backing suggests a strategic push towards solidifying its market leadership and driving further innovation in AI development workflows.
See full Promptfoo company page
